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PMID: 17112521 Published · ppublish English Journal Article Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S.

Gain- and loss-of-function mutations in Zat10 enhance the tolerance of plants to abiotic stress.

FEBS letters ·Vol. 580 ·No. 28-29 ·2006-12-11 ·Pages 6537-42

Mittler R, Kim Y, Song L, Coutu J, Coutu A, Ciftci-Yilmaz S, Lee H, Stevenson B, Zhu JK

Abstract

C(2)H(2)-zinc finger proteins that contain the EAR repressor domain are thought to play a key role in modulating the defense response of plants to abiotic stress. Constitutive expression of the C(2)H(2)-EAR zinc finger protein Zat10 in Arabidopsis was found to elevate the expression of reactive oxygen-defense transcripts and to enhance the tolerance of plants to salinity, heat and osmotic stress. Surprisingly, knockout and RNAi mutants of Zat10 were also more tolerant to osmotic and salinity stress. Our results suggest that Zat10 plays a key role as both a positive and a negative regulator of plant defenses.

MeSH Terms
Abscisic Acid/pharmacology Adaptation, Physiological/drug effects Arabidopsis/genetics,immunology,physiology Arabidopsis Proteins/genetics Gene Expression/drug effects Gene Expression Regulation, Plant/drug effects Genes, Plant Mutation/genetics Plants, Genetically Modified RNA, Messenger/genetics,metabolism Seedlings/drug effects Sodium Chloride/pharmacology
Chemicals
Arabidopsis Proteins RNA, Messenger Zat10 protein, Arabidopsis Sodium Chloride Abscisic Acid
Authors & Affiliations
9 authors, click to expand affiliations / ORCID
Mittler Ron
Department of Biochemistry, University of Nevada, Reno, NV 89557, USA. [email protected]
Kim Yongsig
Song Luhua
Coutu Jesse
Coutu Alicia
Ciftci-Yilmaz Sultan
Lee Hojoung
Stevenson Becky
Zhu Jian-Kang
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Article Info
Journal
FEBS letters
Abbr.
FEBS Lett
ISSN
0014-5793
DOI
10.1016/j.febslet.2006.11.002
Email
[email protected]
Published
2006-12-11
Epub
2006-00-09
Pages
6537-42
Language
English
Region
England
NLM ID
0155157
PMCID
PMC1773020
Subset
IM
Grants
NIGMS NIH HHS · R01 GM059138 · United States
NIGMS NIH HHS · R01GM059138 · United States
External Links
PubMed source DOI: 10.1016/j.febslet.2006.11.002 PMC Full Text View journal details
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